A ball is thrown at an original speed of 8.0 m/s at an angle of 35° above the horizontal. If there is no air, what is the speed of the ball when it returns to the same horizontal level?

A) 4.0 m/s
B) 8.0 m/s
C) 16 m/s
D) 9.8 m/s


B

Physics & Space Science

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A 300-g glass thermometer initially at 25°C is put into 200 cm3 of hot water at 95°C. Find the final temperature (in °C) of the thermometer, assuming no heat flows to the surroundings. (The specific heat of glass is 0.2 cal/g/°C.)

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In an experiment to measure the thermal conductivity of a certain material, a slab of material 10.0 mm thick separates a steam chamber from a block of ice with a square cross-section with dimensions 8.00 cm × 8.00 cm

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An AM radio tuning circuit has a coil with an inductance of 4.00 mH and a capacitor set at 7.50 × 10^-6 mF. What frequency will it detect?

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Physics & Space Science